87945985 has 8 divisors (see below), whose sum is σ = 105624000. Its totient is φ = 70297584.

The previous prime is 87945971. The next prime is 87946013. The reversal of 87945985 is 58954978.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87945985 - 2⁵ = 87945953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235 + ... + 13264.

It is an arithmetic number, because the mean of its divisors is an integer number (13203000).

Almost surely, 2^87945985 is an apocalyptic number.

It is an amenable number.

87945985 is a deficient number, since it is larger than the sum of its proper divisors (17678015).

87945985 is a wasteful number, since it uses less digits than its factorization.

87945985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14807.

The product of its digits is 3628800, while the sum is 55.

The square root of 87945985 is about 9377.9520685489. The cubic root of 87945985 is about 444.7049932112.

It can be divided in two parts, 879 and 45985, that added together give a palindrome (46864).

The spelling of 87945985 in words is "eighty-seven million, nine hundred forty-five thousand, nine hundred eighty-five".